Iván Vera-Escalona

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Interpreting the genetic structure of a metapopulation as the outcome of gene flow over a variety of timescales is essential for the proper understanding of how changes in landscape affect biological connectivity. Here we contrast historical and contemporary connectivity in two metapopulations of the freshwater fish Galaxias platei in northern and(More)
Historical climate changes and orogenesis are two important factors that have shaped intraspecific biodiversity patterns worldwide. Although southern South America has experienced such complex events, there is a paucity of studies examining the effects on intraspecific diversification in this part of the world. Liolaemus pictus is the southernmost(More)
We present the whole mitochondrial genome for Galaxias platei, a freshwater fish widely distributed throughout the Patagonian Andes, and compare it with the mitochondrial genome of three congeneric species. The position of G. platei in the phylogenetic reconstruction differs from that shown by earlier studies using multiple markers. We discuss the results(More)
Galaxias maculatus is a widely distributed fish with diadromous and resident populations throughout Gondwanan regions. We present 17 novel microsatellite markers that were tested on 44 individuals from one lacustrine population in Patagonia. We found ten polymorphic markers and seven monomorphic markers in the population under analysis. The number of(More)
Environmental pollution including mutagens from wastewater effluents and discontinuity by man-made barriers are considered typical anthropogenic pressures on microevolutionary processes that are responsible for the loss of biodiversity in aquatic ecosystems. Here, we tested for the effects of wastewater treatment plants (WWTPs), weirs and other stressors on(More)
Galaxias platei is a fish species restricted to lakes and rivers from Patagonia. In this study, 15 novel microsatellite loci were developed and characterized for 64 individuals of G. platei collected from a Patagonian lake. Eight loci were polymorphic and seven were monomorphic. The number of alleles in the polymorphic loci ranged from 3 to 6, and the(More)
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